I think its the right decision, although I appear to be in a minority!
Its show the airfield / IWM are trying to do somehthing, which is probably more important, due to the ignorant press / readers. It LOOKS like they are trying, so it _may_ appease the anti aircraft lot.
Secondly, since seeing the RR Spit crash at Woodford during a loop & the P38 in 1997, I have wanted warbirds & crews to stop looping & any manuaveurs with signifcant downward momentum. I know they are not _really_ aeros, but they are precious & so are the crew. I am happy to attend a show & see wing overs & fast passes from these (often) unique, and leave the aeros to the Pitts, Su28 etc.